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See "Parameter Expansion" in the bash manpage. They refer to this as "Use Alternate Value", but we're including the var in the at alternative.
Tested with bash v4.1.5 on ubuntu 10.10
as written above, only works for programs with no file extention (i.e 'proggy', but not 'proggy.sh')
because \eb maps to readine function backward-word rather then shell-backward-word (which
is unbinded by default on ubuntu), and correspondingly for \ef.
if you're willing to have Ctrl-f and Ctrl-g taken up too , you can insert the following lines
into ~/.inputrc, in which case invoking Ctrl-e will do the right thing both for "proggy" and "proggy.sh".
-- cut here --
-- cut here --
alternative for "echo rm *.txt". Just doubletab the command you are willing to use and it will show you the affected files.
if you're using wildcards * or ? in your command, and if you're deleting, moving multiple files, it's always safe to see how those wildcards will expand. if you put "echo" in front of your command, the expanded form of your command will be printed. It's better safe than sorry.
Usually the MS-DOS cmd.exe processes in the whole FOR loop as one command and expands each var like %varname% in before (except the loop var of course).
This command enables expansion of other vars than only the loop var during the FOR loop. The syntax of the var to expand is then !varname! inside the FOR loop.
to end the setlocal command.
E.g. (only works from batch files, not from commandline directly):
FOR %%A IN (*) DO (
Quick method of isolating filenames from a full path using expansion.
Much quicker than using "basename"